%0 Journal Article
%T Source Contamination in X-ray Studies of Star-forming Regions: Application to the Chandra Carina Complex Project
%+ Institut d'Astrophysique de Paris (IAP)
%A Getman, Konstantin V.
%A Broos, Patrick S.
%A Feigelson, Eric D.
%A Townsley, Leisa K.
%A Povich, Matthew S.
%A Garmire, Gordon P.
%A Montmerle, Thierry
%A Yonekura, Yoshinori
%A Fukui, Yasuo
%< avec comité de lecture
%J The Astrophysical Journal Supplement
%V 194
%8 2011
%D 2011
%Z 1102.5122
%Z 2011ApJS..194....3G
%R 10.1088/0067-0049/194/1/3
%K Galaxy: disk
%K ISM: individual objects: Carina
%K open clusters and associations: individual: Carina
%K stars: formation
%K stars: pre-main sequence
%K X-rays: stars
%K Astrophysics - Solar and Stellar Astrophysics
%K Astrophysics - Astrophysics of Galaxies
%K Astrophysics - High Energy Astrophysical Phenomena
%Z Sciences of the Universe [physics]Journal articles
%X We describe detailed simulations of X-ray-emitting populations to evaluate the levels of contamination by both Galactic and extragalactic X-ray sources unrelated to a star-forming region under study. For Galactic contaminations, we consider contribution from main-sequence stars and giants (not including cataclysmic variables and other classes of accretion-driven X-ray binary systems), as they make the dominant contribution at the position of the Carina Nebula. The simulations take into consideration a variety of technical factors involving a Galactic population synthesis model, stellar X-ray luminosity functions, Chandra telescope response, source detection methodology, and possible spatial variations in the X-ray background and absorption through molecular clouds. When applied to the 1.42 deg2 field of the Chandra Carina Complex Project (CCCP), the simulations predict ~5000 contaminating sources (1 source arcmin-2 of the survey), evenly distributed across the field. The results of the simulations are further employed in a companion CCCP study to assign membership probabilities to individual sources.
%G English
%L insu-03645991
%U https://insu.hal.science/insu-03645991
%~ INSU
%~ CNRS
%~ IAP
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%~ SU-INF-2018
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